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Black mid-tower workstation chassis, front panel visible

DELL

Dell Precision 5820 Tower Workstation Xeon W-2135 256GB DDR4 500GB NVMe Quadro P4000

SKU CH-81CJ-5KG6K

A mid-tower workstation with a 6-core Xeon W-2135 at 3.7 GHz, 256 GB DDR4 2666 ECC memory, 500 GB NVMe SSD and an 8 GB Quadro P4000 for multi-display professional workloads

  • Screen sizeNo Screen
  • ProcessorIntel Xeon
  • RAM capacity256 GB DDR4
  • SSD storage500 GB pcie
  • GraphicsNVIDIA Quadro P4000
  • CPU modelW-2135 (3.7 GHz)
  • Six-core Xeon W-2135 reaches 4.5 GHz turbo for heavy workloads
  • 256 GB DDR4 2666 ECC memory handles large datasets without errors
  • 500 GB NVMe SSD boots Windows 11 Pro and loads projects fast
  • Quadro P4000 with 8 GB GDDR5 drives four displays for visualisation
  • 950 W 80 Plus Gold supply delivers stable power under full load

Precision 5820 Tower workstation

The Dell Precision 5820 Tower is a mid-tower desktop built around an Intel Xeon W-2135 six-core processor running at 3.7GHz with a 4.5GHz turbo. It ships with 256GB of DDR4 2666MHz registered ECC memory across eight slots and a 500GB NVMe SSD. An Nvidia Quadro P4000 graphics card with 8GB GDDR5 and four DisplayPort outputs drives professional visual workloads. Windows 11 Pro is pre-installed.

Installation and common issues

The system arrives assembled with the operating system activated, so initial setup is limited to connecting peripherals and power. The 950W 80 Plus Gold power supply uses standard ATX connectors for the motherboard and GPU. Memory is already populated to the 256GB maximum across all eight DIMM slots, leaving no room for further RAM upgrades without removing existing modules. The single M.2 NVMe slot is occupied by the 500GB drive, so additional NVMe storage requires a PCIe adapter card.

Capacity and headroom

The 256GB DDR4 ECC configuration handles large datasets, virtual machines and complex simulations without paging. The six-core Xeon and Quadro P4000 combination delivers solid throughput for CAD, rendering and compute tasks that fit within 8GB of graphics memory. The 500GB NVMe boot drive offers fast application loading but fills quickly with project files, so secondary storage should be planned early. Workloads needing more than six CPU cores or greater GPU memory will exceed this platform's limits.

How it compares

Measured against everything we stock in Tower & Compact Desktop PCs, at today’s prices. Recalculated every night.

Price $1,508.99
Pricier than about 88% of the 14,711 comparable items (median $494.99).
RAM capacity 256 GB DDR4
Higher than about 92% of the 13,125 comparable items (median 16 GB).
SSD storage 500 GB pcie
Lower than about 70% of the 11,342 comparable items (median 512 GB).

Specifications

Product
Product linePrecision
Model nameT5820
Product typeBusiness Desktops & Workstations
Recommended useBusiness
Product colorBlack
Processor
ProcessorIntel Xeon
CPU modelW-2135 (3.7 GHz)
CPU socketLGA 2066
Memory
RAM capacity256 GB DDR4
RAM type and speedDDR4 2666
Total memory slots8
Max supported RAM256 GB
Storage
SSD storage500 GB pcie
Hard driveNo
Display
Screen sizeNo Screen
Graphics
GraphicsNVIDIA Quadro P4000
Size & build
Form factorMid Tower
In the box
Included monitorNot included
Software
Operating systemWindows 11 Pro

Other versions of this model

5 more in the same range

Questions about this item

How can I confirm the Xeon W-2135 is reaching its 4.5GHz turbo speed under load?

Open Task Manager Performance tab or a monitoring tool such as HWMonitor and run a sustained multi-threaded workload; the CPU frequency graph should show cores climbing toward 4.5 GHz while temperatures remain within spec.

Which components are included in the box and which must be purchased separately?

The tower ships with the Xeon W-2135 processor, 256 GB DDR4 2666 MHz registered ECC memory (eight 32 GB modules), 500 GB M.2 NVMe SSD, Quadro P4000 8 GB GDDR5 graphics card, 950 W 80 Plus Gold power supply, Windows 11 Pro licence and keyboard and mouse; a display is not included.

Should I choose a different memory capacity or GPU option for this Precision 5820 configuration?

This unit already carries the maximum supported 256 GB of DDR4 2666 MHz ECC memory across all eight slots and the Quadro P4000 with 8 GB GDDR5; no larger memory or alternative GPU is available for this specific listing.

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